   0  getarrayitem_gc_r %r1, $0, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000000177231bb0> -> %r0
   6  inline_call_ir_r <JitCode 'interp_w__W_FFIObject'>, I[$False], R[%r0] -> %r0
  14  -live- %r0
  14  residual_call_r_r $<* fn W_FFIObject.descr_list_types>, R[%r0], <CallDescr(r) EF=7> -> %r0
  21  -live- %r0
  21  ref_return %r0
